Heavy rain warning issued for Nghe An.
According to the National Center for Hydro-Meteorological Forecasting, from the night of September 11th to the early morning of September 12th, the northern delta and midland areas, Thanh Hoa and Nghe An provinces will experience moderate to heavy rain and thunderstorms.
1. Rainfall patterns over the past 24 hours
Today (September 11th), the Northern, North Central, and Southern regions of Vietnam experienced rain, moderate rain, and scattered thunderstorms, with some areas experiencing heavy to very heavy rain; particularly in the delta region and Hoa Binh province, there was moderate to heavy rain and scattered thunderstorms, with some areas experiencing very heavy rain.
Rainfall from 7:00 AM to 8:00 PM on September 11th exceeded 100mm in some areas, such as: Hai Trieu (Hung Yen) 196.0mm, Tien Phong (Hai Duong) 162.2mm, Luong Tai (Bac Ninh) 132.2mm, Nam Truc (Nam Dinh) 127.8mm, Dong Hai (Thai Binh) 123.8mm, Quan Hoa (Hanoi) 118.4mm, Chau Thanh (Tra Vinh) 163.4mm, Binh Dai (Ben Tre) 139.8mm, Binh Phong Thach (Long An) 126.2mm, Xuyen Moc (Ba Ria-Vung Tau) 113.8mm, etc.
2. Forecast of heavy rainfall in the next 24 to 48 hours.
From the night of September 11th to the early morning of September 12th, the northern delta and midland areas, Thanh Hoa and Nghe An provinces experienced moderate to heavy rain and thunderstorms, with some areas experiencing very heavy rain. The rainfall amount was generally 30-50mm, with some areas receiving over 100mm.
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On September 12th, both day and night, the northeastern region of Vietnam, Lao Cai, Yen Bai, and Hoa Binh experienced rain, moderate rain, and thunderstorms in some areas, with localized heavy to very heavy rainfall of 20-40mm, and in some places over 80mm.
Detailed forecast:
| Area | Time of impact | Total length (mm) |
| Northern Delta, Northern Midlands, Thanh Hoa and Nghe An | From the night of September 11th to the early morning of September 12th | 30-50, with some localized areas exceeding 100. |
Besides,On the night of September 11th and throughout September 12th, scattered showers and thunderstorms are expected in the Viet Bac region of Northern Vietnam, from Ha Tinh to Binh Thuan, with localized heavy rain in some areas, with rainfall amounts ranging from 10-30mm, and exceeding 60mm in some places. The Central Highlands and Southern Vietnam will experience rain, moderate rain, and thunderstorms, with localized heavy to very heavy rain in some areas, with rainfall amounts ranging from 20-40mm, and exceeding 80mm in some places. Tornadoes, lightning, and strong gusts of wind are possible during thunderstorms.
3. Warning:Thunderstorms and localized heavy rain in Central Vietnam are likely to continue for several more days. From around September 13th, a period of heavy rain is likely to occur in the Central Highlands and Southern Vietnam.
4. Warning clevel of natural disaster risk due toheavy rain, tornadoes, lightning:Level 1.
5. Forecast of the impact of heavy rainfall
Heavy rainfall and localized heavy rain are likely to cause flooding in low-lying areas; flash floods on small rivers and streams, and landslides on slopes.
